The arrows in the comment show the direction of the signal, whether it is a signal that comes out of the node (->), or is sent by the node user to the node (<-). The type of the data expected for the signal is specified in parentheses. This data starts at the data field of the message structure.

If the lower hook is disconnected and the node is enabled, the protocol state is reset.

This message returns a .Vt sscop_param structure, which contains the default parameters for the SSCOP at the UNI. This structure should be used for a NGM_SSCOP_SETPARAM message to the SSCOP node below the SSCF.

NGM_SSCFU_ENABLE

This message creates the actual SSCF instance and initializes it. Until this is done, parameters may neither be retrieved nor set, and all messages received on any hook are discarded.

NGM_SSCFU_DISABLE

Destroy the SSCF instance. After this, all messages on any hooks are discarded.

NGM_SSCFU_GETDEBUG

Retrieve the debugging flags in a .Vt uint32_t .

NGM_SSCFU_SETDEBUG

Set debugging flags. The argument must be a .Vt uint32_t .

NGM_SSCFU_GETSTATE

Retrieve the current state of the SSCFU instance in a .Vt uint32_t . If the node has not been enabled, 0 is returned.